The vast array of organisms in the deep sea remains a mystery to humans. Now, marine biologists can add one more puzzle to the list. A collection of odd materials was discovered nearly four miles ...

Discover the 25 craziest looking sea creatures, from transparent-headed fish to parasitic anglerfish. Explore the ocean's ...

In the ocean's twilight zone, where the reach of the Sun fades to nothing, an epic migration begins every time night falls. It could also have an outsized effect on our climate.

A baby sea creature was spotted swimming with what is likely its mom in Puget Sound in Washington, photos show. Photo by Sergei A via Unsplash A baby sea creature popped up just in time to bring a ...

Passengers off the coast of California got the chance to spot mama sea creatures swimming in unison with their babies, boaters said. The day began with a pod of common dolphins being spotted along ...

Arctic glacial fjords are hotspots of marine life, yet their seafloor environments remain some of the least explored regions on Earth. Their extreme remoteness and the technical challenges of ...

The video above takes viewers beneath the waters off Bali, Indonesia, where a truly unusual marine animal glides across the seafloor. At first glance, it looks almost unreal — soft, translucent, and ...

Hydrothermal vents on the ocean floor host a broad range of rare and unusual ecosystems. They can be spread far apart, yet ...

Somewhere beneath tropical waves, a sea slug the size of a house cat pulls off a move that stops divers cold. Meet the ...

Passengers off the coast of California got the chance to spot mama sea creatures swimming in unison with their babies, boaters said. The day began with a pod of common dolphins being spotted along ...